Improvement in car-axle-box covers



D. COWLE Y.

Car-AxleBox Cover;

No. 110,117. Patented Dec. 13, 1870.

N- PETERS. Phn'ol-flhngnphur. Washington. D. C

? iiinitial san patent one,

DAVID COWLEY, or ERIE, PENNSYLVANIA.

Letters Patent No. 110,117, dated December 13, 187i).

IMPROVEMENT lN CAR-AXLE-BOX COVERS.

The Schedule referred to these Letters Patent and making part of thesame.

ing had to the accompanyingdrawing and to the-letters of referencemarked thereon.

The object of my invention is to provide a car-axle oil-box with a coverthat shall fit closely and firmly over the oil-box, and that shall becapable of being easily removed when it is necessaryto make an entranceinto the box.

In order to enable persons skilled in the art of constructing car-axleboxes to more closely con'iprehend myinrention, I shall refer to theaccompanying draw-' ing, in which Figure 1' shows a perspective view ofa car-axle oilbox with one of my covers attached.

Figure 2 is a sectional view of that portion of a caraxle box to whichmy cover is attached, and also of the cover itself.

Figure 3 shows vertical sectional \iew of the cover and its immediatesurroundings.

In the drawing- A represents the body of the box.

B is the cover, the form of which can be more perfectly seen in fig. 2,where it will be seen that on its under side it is constructed withextensions G and O.

The extension 0- is made to occupy or rest in the chamber I), which isformed in one side of the box.

v \Vithin the chamber 1) rests a spring, E, against which the extensionof the cover presses when the cover is shut.

.The extension G is merely for the purpose of a catch to hold the covershut.

In fig. 3 the position of the parts 0 and E is the same that they occupywhen the cover is shut.

It will be seen that in order-to open the cover it must be shoved bacl;against the spring E, which is now holding the cover close againstthe'ot-her side of the box, and hence holding the catch G under theflange 011 the other side of the box. This, when a spring of sufficienttension is used, will be hard and almost impossible to accomplishwithout a properlyformed instrument, which should properly be in theform of a cant-lever with its hook grappling at the dog H. Thus thecover may be shoved back, depressing the spring 15 a sufficient distanceto allow-the catch G to pass out from the flange under whichit rests,and thus opening the box.

It will be seen that this contrivance gives a boxcover that may beeasily removed by the car inspector, much easier than when the cover issecured by setscrews passing through ears on the side of the box.

F is a wooden plug, which fills the hole through which the spring 19 isintroduced to the chamber 1), and prevents all possibility of the springbeing thrown out by any motion of, the car.

. What 1 claim as my invention is as follows:

The cover 13, in combination with the chamber D and spring E, when thesame are constructed and arranged as and for the purposes set forth.

DAV-ID COWLEY.

Witnesses:

J No. K. HALLOGK, EDWARD D. AUs'rIN. V

